Clinical bottom line
Neurofibromatosis Type 1 (NF1) presents unique anesthetic challenges due to multisystem involvement, including potential airway abnormalities, vascular fragility, and neurologic manifestations. Current evidence, primarily from case reports and small series, suggests that careful preoperative evaluation and individualized anesthetic planning can mitigate perioperative risks. Thoracic surgery in NF1 patients may require advanced airway management strategies and vigilant intraoperative monitoring to address potential complications. While data remain limited, anesthesiologists should maintain heightened awareness of NF1-associated comorbidities to optimize perioperative outcomes.
What the evidence shows
NF1 is a genetic disorder characterized by neurocutaneous manifestations and predisposition to tumor formation, including neurofibromas that may affect airway anatomy and vascular structures. Lin et al. (2025) reported the anesthetic management of a 58-year-old female with NF1 undergoing thoracic surgery, highlighting challenges such as difficult airway due to plexiform neurofibromas and potential pulmonary involvement. The case emphasized the importance of preoperative airway assessment and readiness for advanced airway techniques, including fiberoptic intubation.
Although large-scale studies are lacking, the literature underscores that NF1 patients may have increased risk for airway obstruction, vascular fragility leading to bleeding, and neurologic complications during anesthesia. These risks necessitate thorough evaluation of airway anatomy, cardiovascular status, and neurologic function preoperatively. Intraoperative vigilance for hemodynamic instability and bleeding is critical, given the potential for vascular abnormalities associated with NF1.
Comparative evidence from related conditions involving airway tumors or neurogenic tumors, such as peripheral nerve schwannomas, suggests that surgical excision can be safely performed with tailored anesthetic approaches (Bendon et al., 2015). However, NF1’s multisystem involvement requires a broader perioperative strategy.
There is no consensus on a standardized anesthetic protocol for NF1 patients, but case-based evidence supports the use of multimodal monitoring and preparedness for difficult airway scenarios. The use of regional anesthesia may be limited by tumor location and neurologic involvement, necessitating individualized decisions.
Caveats and uncertainty
The evidence base for anesthetic management in NF1 is limited to case reports and small observational studies, lacking randomized controlled trials or large cohort analyses. This restricts the ability to generalize findings or establish firm guidelines. The heterogeneity of NF1 manifestations means that anesthetic risks vary widely between patients, complicating risk stratification.
Potential confounders include the presence of comorbid conditions such as hypertension or scoliosis, which may independently influence anesthetic risk. Additionally, the impact of tumor burden and specific tumor locations on anesthetic outcomes remains incompletely characterized.
Because NF1 is a rare disease, multicenter registries or prospective studies are needed to better define perioperative risks and optimal management strategies. Until then, recommendations remain largely hypothesis-generating and should be adapted to individual patient contexts.
How this may change practice
Anesthesiologists should incorporate NF1-specific considerations into preoperative assessment protocols, emphasizing detailed airway evaluation and cardiovascular assessment. Anticipation of difficult airway and vascular fragility should prompt preparation for advanced airway devices and blood management strategies.
Multidisciplinary collaboration with surgical, neurology, and pulmonology teams is advisable to optimize perioperative planning. Documentation of NF1-related manifestations and prior anesthetic experiences can inform risk mitigation.
This evidence digest encourages clinicians to maintain a high index of suspicion for NF1-related complications and to individualize anesthetic plans accordingly. Enhanced perioperative monitoring and readiness for emergent airway or hemodynamic interventions may improve patient safety.
Further research is warranted to develop evidence-based guidelines and to explore the role of regional anesthesia and opioid-sparing techniques in this population.